X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fuserspace-probe.c;h=b6e5083a2907c35836c4b856882004b669feee5b;hp=37bdcc7b1b7897ac3ef588b4839744995dd17591;hb=14c4262b940630bbb75f68b8c2eaef2b134a62d9;hpb=adf53c6784b300427bb9fbff461fa88c897b9185

diff --git a/src/common/userspace-probe.c b/src/common/userspace-probe.c
index 37bdcc7b1..b6e5083a2 100644
--- a/src/common/userspace-probe.c
+++ b/src/common/userspace-probe.c
@@ -196,6 +196,8 @@ lttng_userspace_probe_location_function_create_no_check(const char *binary_path,
 	location->function_name = function_name_copy;
 	location->binary_path = binary_path_copy;
 	location->binary_fd = binary_fd;
+	location->instrumentation_type =
+			LTTNG_USERSPACE_PROBE_LOCATION_FUNCTION_INSTRUMENTATION_TYPE_ENTRY;
 
 	ret = &location->parent;
 	ret->lookup_method = lookup_method;
@@ -274,6 +276,7 @@ lttng_userspace_probe_location_tracepoint_create_no_check(const char *binary_pat
 error:
 	free(probe_name_copy);
 	free(provider_name_copy);
+	free(binary_path_copy);
 	if (binary_fd >= 0) {
 		if (close(binary_fd)) {
 			PERROR("Error closing binary fd in error path");
@@ -400,32 +403,35 @@ lttng_userspace_probe_location_function_copy(
 	enum lttng_userspace_probe_location_lookup_method_type lookup_type;
 	struct lttng_userspace_probe_location *new_location = NULL;
 	struct lttng_userspace_probe_location_lookup_method *lookup_method = NULL;
-	char *binary_path = NULL;
-	char *function_name = NULL;
-	int fd;
+	const char *binary_path = NULL;
+	const char *function_name = NULL;
+	int fd, new_fd;
 
 	assert(location);
 	assert(location->type == LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION);
 
-	 /* Duplicate probe location fields */
-	binary_path =
-		lttng_strndup(lttng_userspace_probe_location_function_get_binary_path(location),
-				LTTNG_PATH_MAX);
+	 /* Get probe location fields */
+	binary_path = lttng_userspace_probe_location_function_get_binary_path(location);
 	if (!binary_path) {
+		ERR("Userspace probe binary path is NULL");
 		goto error;
 	}
 
-	function_name =
-		lttng_strndup(lttng_userspace_probe_location_function_get_function_name(location),
-				LTTNG_SYMBOL_NAME_LEN);
+	function_name = lttng_userspace_probe_location_function_get_function_name(location);
 	if (!function_name) {
-		PERROR("Error duplicating function name string");
+		ERR("Userspace probe function name is NULL");
 		goto error;
 	}
 
 	/* Duplicate the binary fd */
-	fd = dup(lttng_userspace_probe_location_function_get_binary_fd(location));
+	fd = lttng_userspace_probe_location_function_get_binary_fd(location);
 	if (fd == -1) {
+		ERR("Error getting file descriptor to binary");
+		goto error;
+	}
+
+	new_fd = dup(fd);
+	if (new_fd == -1) {
 		PERROR("Error duplicating file descriptor to binary");
 		goto error;
 	}
@@ -451,13 +457,13 @@ lttng_userspace_probe_location_function_copy(
 
 	/* Create the probe_location */
 	new_location = lttng_userspace_probe_location_function_create_no_check(
-			binary_path, function_name, lookup_method, true);
+			binary_path, function_name, lookup_method, false);
 	if (!new_location) {
 		goto destroy_lookup_method;
 	}
 
 	/* Set the duplicated fd to the new probe_location */
-	if (lttng_userspace_probe_location_function_set_binary_fd(new_location, fd) < 0) {
+	if (lttng_userspace_probe_location_function_set_binary_fd(new_location, new_fd) < 0) {
 		goto destroy_probe_location;
 	}
 
@@ -468,12 +474,10 @@ destroy_probe_location:
 destroy_lookup_method:
 	lttng_userspace_probe_location_lookup_method_destroy(lookup_method);
 close_fd:
-	if (close(fd) < 0) {
+	if (close(new_fd) < 0) {
 		PERROR("Error closing duplicated file descriptor in error path");
 	}
 error:
-	free(function_name);
-	free(binary_path);
 	new_location = NULL;
 end:
 	return new_location;
@@ -486,43 +490,43 @@ lttng_userspace_probe_location_tracepoint_copy(
 	enum lttng_userspace_probe_location_lookup_method_type lookup_type;
 	struct lttng_userspace_probe_location *new_location = NULL;
 	struct lttng_userspace_probe_location_lookup_method *lookup_method = NULL;
-	char *binary_path = NULL;
-	char *probe_name = NULL;
-	char *provider_name = NULL;
-	int fd;
+	const char *binary_path = NULL;
+	const char *probe_name = NULL;
+	const char *provider_name = NULL;
+	int fd, new_fd;
 
 	assert(location);
 	assert(location->type == LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT);
 
-	 /* Duplicate probe location fields */
-	binary_path =
-		lttng_strndup(lttng_userspace_probe_location_tracepoint_get_binary_path(location),
-				LTTNG_PATH_MAX);
+	 /* Get probe location fields */
+	binary_path = lttng_userspace_probe_location_tracepoint_get_binary_path(location);
 	if (!binary_path) {
-		PERROR("lttng_strndup");
+		ERR("Userspace probe binary path is NULL");
 		goto error;
 	}
 
-	probe_name =
-		lttng_strndup(lttng_userspace_probe_location_tracepoint_get_probe_name(location),
-				LTTNG_SYMBOL_NAME_LEN);
+	probe_name = lttng_userspace_probe_location_tracepoint_get_probe_name(location);
 	if (!probe_name) {
-		PERROR("lttng_strndup");
+		ERR("Userspace probe probe name is NULL");
 		goto error;
 	}
 
-	provider_name =
-		lttng_strndup(lttng_userspace_probe_location_tracepoint_get_provider_name(location),
-				LTTNG_SYMBOL_NAME_LEN);
+	provider_name = lttng_userspace_probe_location_tracepoint_get_provider_name(location);
 	if (!provider_name) {
-		PERROR("lttng_strndup");
+		ERR("Userspace probe provider name is NULL");
 		goto error;
 	}
 
 	/* Duplicate the binary fd */
-	fd = dup(lttng_userspace_probe_location_tracepoint_get_binary_fd(location));
+	fd = lttng_userspace_probe_location_tracepoint_get_binary_fd(location);
 	if (fd == -1) {
-		PERROR("dup");
+		ERR("Error getting file descriptor to binary");
+		goto error;
+	}
+
+	new_fd = dup(fd);
+	if (new_fd == -1) {
+		PERROR("Error duplicating file descriptor to binary");
 		goto error;
 	}
 
@@ -547,13 +551,13 @@ lttng_userspace_probe_location_tracepoint_copy(
 
 	/* Create the probe_location */
 	new_location = lttng_userspace_probe_location_tracepoint_create_no_check(
-			binary_path, provider_name, probe_name, lookup_method, true);
+			binary_path, provider_name, probe_name, lookup_method, false);
 	if (!new_location) {
 		goto destroy_lookup_method;
 	}
 
 	/* Set the duplicated fd to the new probe_location */
-	if (lttng_userspace_probe_location_tracepoint_set_binary_fd(new_location, fd) < 0) {
+	if (lttng_userspace_probe_location_tracepoint_set_binary_fd(new_location, new_fd) < 0) {
 		goto destroy_probe_location;
 	}
 
@@ -564,13 +568,10 @@ destroy_probe_location:
 destroy_lookup_method:
 	lttng_userspace_probe_location_lookup_method_destroy(lookup_method);
 close_fd:
-	if (close(fd) < 0) {
-		PERROR("close");
+	if (close(new_fd) < 0) {
+		PERROR("Error closing duplicated file descriptor in error path");
 	}
 error:
-	free(provider_name);
-	free(probe_name);
-	free(binary_path);
 	new_location = NULL;
 end:
 	return new_location;
@@ -692,6 +693,52 @@ end:
 	return ret;
 }
 
+enum lttng_userspace_probe_location_function_instrumentation_type
+lttng_userspace_probe_location_function_get_instrumentation_type(
+		const struct lttng_userspace_probe_location *location)
+{
+	enum lttng_userspace_probe_location_function_instrumentation_type type;
+	struct lttng_userspace_probe_location_function *function_location;
+
+	if (!location || lttng_userspace_probe_location_get_type(location) !=
+			LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION) {
+		ERR("Invalid argument(s)");
+		type = LTTNG_USERSPACE_PROBE_LOCATION_FUNCTION_INSTRUMENTATION_TYPE_UNKNOWN;
+		goto end;
+	}
+
+	function_location = container_of(location,
+		struct lttng_userspace_probe_location_function, parent);
+	type = function_location->instrumentation_type;
+end:
+	return type;
+}
+
+enum lttng_userspace_probe_location_status
+lttng_userspace_probe_location_function_set_instrumentation_type(
+		const struct lttng_userspace_probe_location *location,
+		enum lttng_userspace_probe_location_function_instrumentation_type instrumentation_type)
+{
+	enum lttng_userspace_probe_location_status status =
+			LTTNG_USERSPACE_PROBE_LOCATION_STATUS_OK;
+	struct lttng_userspace_probe_location_function *function_location;
+
+	if (!location || lttng_userspace_probe_location_get_type(location) !=
+			LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION ||
+			instrumentation_type !=
+			LTTNG_USERSPACE_PROBE_LOCATION_FUNCTION_INSTRUMENTATION_TYPE_ENTRY) {
+		ERR("Invalid argument(s)");
+		status = LTTNG_USERSPACE_PROBE_LOCATION_STATUS_INVALID;
+		goto end;
+	}
+
+	function_location = container_of(location,
+		struct lttng_userspace_probe_location_function, parent);
+	function_location->instrumentation_type = instrumentation_type;
+end:
+	return status;
+}
+
 int lttng_userspace_probe_location_tracepoint_get_binary_fd(
 		const struct lttng_userspace_probe_location *location)
 {